What we are working from
Everything below is grounded in what xAI actually publishes. Since 2026 the For You feed has been ranked by Phoenix, a Grok-based two-tower transformer that handles retrieval and ranking in one model, replacing the Heavy Ranker, SimClusters and RealGraph stack from 2023. The repository states the team eliminated every hand-engineered feature and most heuristics.
One caveat we will repeat wherever it matters: the numeric engagement weights are not public. They sit in a params module that has never shipped, in 2026 or in 2023.
Anyone quoting you an exact multiplier is repeating a leak or an inference. The ordering is reliable; the ratios are not. Full breakdown here.
Why the founder account wins
Personal accounts consistently outperform brand accounts on reach and on trust. Part of that is human, people follow people. Part is mechanical: personal accounts reply, argue, and post specifics, all of which sit higher in the ranking ordering than the polished announcements brand accounts produce.
The practical consequence for a launch is that the founder should post first and the company account should amplify afterwards. The sequencing is here.
The forty-minute budget
| Time | What it buys |
|---|---|
| 10 min, morning | One post. Something specific you learned, decided, or changed your mind about this week. |
| 20 min, midday | Replies. Yours and other people's. This is the highest-value block and the first one founders cut. |
| 10 min, evening | Reply to anything your morning post generated. Conversation the author joins sits at the top of the ordering. |
Forty minutes is a floor that survives a bad week. The accounts that compound are the ones that keep the floor, rather than the ones alternating great months with silent quarters.
What to actually post
- Decisions with reasoning. "We chose X over Y because Z" is specific, checkable, and invites disagreement, which produces replies.
- Numbers you are allowed to share. A real figure outperforms any adjective.
- Things that did not work. Reliably the highest-engagement founder content, and the cheapest to write because you already lived it.
- Product, shown. A raw screen recording beats a produced clip for technical audiences.
Skip: motivational threads, engagement bait, and hot takes on subjects outside your actual expertise. The first two trip the negative heads; the third erodes the topical association the model has learned about your account.
What not to delegate
The founder account should stay in-house. Tone and legal exposure belong with you, and audiences detect a ghostwritten founder quickly, usually because the replies stop sounding like the posts.
What can be delegated is everything around it: research, clipping podcast moments, drafting the first version of a post you then rewrite, and running a launch window. That is the split we run for clients, the network is ours, the voice stays theirs.
Questions we get asked
Should founders post from a personal or company account?
Personal. Personal accounts consistently outperform brand accounts on both reach and trust, partly because people follow people and partly because personal accounts reply, argue and post specifics, all of which rank higher than polished corporate announcements. The company account should amplify rather than lead.
How much time does growing on X actually take?
Around forty minutes a day sustained beats several hours in bursts, because ranking is relative to your account's recent baseline and consistency keeps that baseline warm. The most valuable block is time spent in replies, which is also the first thing most founders cut.
Should a founder use a ghostwriter on X?
For the founder's own account, no. Audiences detect it quickly, usually because the replies stop sounding like the posts, and the replies are where the highest-value engagement signal sits. Research, clipping and drafting can be delegated; the voice should not be.